async exit()

in src/extension-runners/chromium.js [380:420]

• 30 lines of code
• 10 McCabe index (conditional complexity)

  async exit() {
    this.exiting = true;

    // Wait for the setup to complete if the extension runner is already
    // being started.
    if (this._promiseSetupDone) {
      // Ignore initialization errors if any.
      await this._promiseSetupDone.catch((err) => {
        log.debug(`ignored setup error on chromium runner shutdown: ${err}`);
      });
    }

    if (this.chromiumInstance) {
      await this.chromiumInstance.kill();
      this.chromiumInstance = null;
    }

    if (this.wss) {
      // Close all websocket clients, closing the WebSocketServer
      // does not terminate the existing connection and it wouldn't
      // resolve until all of the existing connections are closed.
      for (const wssClient of this.wss?.clients || []) {
        if (wssClient.readyState === WebSocket.OPEN) {
          wssClient.terminate();
        }
      }
      await new Promise((resolve) =>
        this.wss ? this.wss.close(resolve) : resolve(),
      );
      this.wss = null;
    }

    // Call all the registered cleanup callbacks.
    for (const fn of this.cleanupCallbacks) {
      try {
        fn();
      } catch (error) {
        log.error(error);
      }
    }
  }